EFFICIENT FREQUENCY UTILIZATION TECHNIQUES FOR HIGH-CAPACITY LAND MOBILE COMMUNICATION SYSTEM.

Masayuki Sakamoto, Masaharu Hata, Teruya Fujii

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

This paper discusses techniques for frequency utilization factor improvement in the High-Capacity Land Mobile Communication System under development at NTT. It is shown that a channel separation of 12. 5 kHz miximizes the frequency utilization factor in terms of both of available channel number and geographical reuse. Improvement in both tolerance against interference and geographical reuse factor is quantitatively discussed for diversity reception. It is also shown that an interference reduction of about 3db can be achieved via detection of increased interference and changing of radio channels to lower the interference.

Original languageEnglish
Pages (from-to)989-997
Number of pages9
JournalDenki Tsushin Kenkyujo kenkyu jitsuyoka hokoku
Volume35
Issue number10
Publication statusPublished - Dec 1 1986

ASJC Scopus subject areas

  • Engineering(all)

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